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Crossley's Ground-thrush Zoothera crossleyi

IUCN Red List Criteria

Near Threatened (criteria nearly met) A3c 

IUCN Red List history

Year Category
2014 Near Threatened
2012 Near Threatened
2008 Near Threatened
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern

Species attributes

Migratory status not a migrant Forest dependency High
Land mass type continent
Average mass -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals Unknown not applicable Not Applicable 0
Population trend Decreasing -
Number of subpopulations - - -
Largest subpopulation - - -
Population justification: The global population size has not been quantified, but the species is described as rare to locally fairly common (del Hoyo et al. 2005).
Trend justification: It is suspected that the population will undergo a moderately rapid decline over the next three generations owing to habitat destruction and fragmentation for small-scale cultivation and large-scale oil-palm plantations (del Hoyo et al. 2005, F. Dowsett-Lemaire in litt. 2013).

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Cameroon Native Extant       Yes
Congo Native Extant       Yes
Congo, The Democratic Republic of the Native Extant       Yes
Nigeria Native Extant       Yes

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Cameroon Bakossi mountains site factsheet
Cameroon Banyang Mbo Wildlife Sanctuary site factsheet
Cameroon Mont Manengouba site factsheet
Cameroon Mont Nlonako site factsheet
Cameroon Mount Cameroon and Mokoko-Onge site factsheet
Cameroon Mount Kupe site factsheet
Cameroon Mount Rata and Rumpi Hills Forest Reserve site factsheet
Cameroon Tchabal-Mbabo site factsheet
Congo Dimonika Biosphere Reserve site factsheet
Nigeria Gashaka-Gumti National Park site factsheet
Nigeria Ngel-Nyaki Forest Reserve site factsheet
Nigeria Obudu Plateau site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable resident
Altitude 500 - 2300 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops / Agro-industry farming Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops / Small-holder farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Negligible declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting / Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - -  

Recommended citation
BirdLife International (2014) Species factsheet: Zoothera crossleyi. Downloaded from http://www.birdlife.org on 03/09/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 03/09/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Near Threatened
Family Turdidae (Thrushes)
Species name author (Sharpe, 1871)
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) -
Country endemic? No
Links to further information
- Summary information on this species
- Projected distributions under climate change